It seems that following the demise of the Amazon CPM program that earned the site about $10 per month it has gone downhill since.
My old list of affiliates now shows them to be largely defunct. This suggests that ad blocking and the lack of companies wanting more exposure are acting to reduce the viability.
At present Amazon is still viable but earnings are less than $1 per month. Clearly more options are needed.
UberCPM and PayClick are both Australian and both owe the studio a few US dollars each. Both have been quiescent since 2017.
Testing some new ads show they are as pathetic as any of the other choices. It seems that not many options are available for the site.